[PATCH] ARM: dts: renesas: Disable RPC driver on R8A779H0 V4M Gray Hawk board

Marek Vasut marek.vasut+renesas at mailbox.org
Sat Oct 18 00:09:09 CEST 2025


From: Nguyen Tran <nguyen.tran.pz at bp.renesas.com>

As requirement of CR side, QSPI Flash usage via RPC driver shall
be disabled and leaving the control of this module to CR side.
Perform DT modification to disable the RPC SPI.

Signed-off-by: Nguyen Tran <nguyen.tran.pz at bp.renesas.com>
Reviewed-by: Khanh Le <khanh.le.xr at renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
[Marek: Do not modify defconfig, modify the DT instead, this way
        the RPC SPI can be enabled without recompiling the U-Boot
        itself. Update commit message accordingly.]
---
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: Tom Rini <trini at konsulko.com>
Cc: u-boot at lists.denx.de
---
 arch/arm/dts/r8a779h0-gray-hawk-single-u-boot.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/dts/r8a779h0-gray-hawk-single-u-boot.dtsi b/arch/arm/dts/r8a779h0-gray-hawk-single-u-boot.dtsi
index 91e1ee1f890..c04d2ae2be4 100644
--- a/arch/arm/dts/r8a779h0-gray-hawk-single-u-boot.dtsi
+++ b/arch/arm/dts/r8a779h0-gray-hawk-single-u-boot.dtsi
@@ -27,7 +27,7 @@
 	#address-cells = <1>;
 	#size-cells = <0>;
 	spi-max-frequency = <40000000>;
-	status = "okay";
+	status = "disabled";
 
 	flash at 0 {
 		#address-cells = <1>;
-- 
2.51.0



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